What is Skeleton GNU/Linux?

A 'stro of GNU/Linux for 'cees. All
free software. Limited number of packages available, just the
essentials: GIMP, Emacs, Inkscape, VLC, GNOME, Chromium, Blender, git, xeyes. Our message is simple: no bones about it.

Why not Debian? Trisquel? PureOS?

They're all fine projects of their own, and old Skelly is based on
Debian. But we also believe in a focused set of packages, like Bruce
Perens' UserLinux project.